obtuse triangle
A triangle with one angle that is greater than 90 degrees.
An obtuse triangle is a type of triangle where one of the angles measures more than 90 degrees. This means that the other two angles are acute, or less than 90 degrees.
To classify a triangle as obtuse, you need to measure all three angles using a protractor or use the given angle measurements to check if any of them are more than 90 degrees.
One special property of an obtuse triangle is that the side opposite to the obtuse angle, called the longest side or hypotenuse, is always the side opposite to the largest angle. This means that the other two sides, called legs, are shorter than the hypotenuse.
Examples of obtuse triangles include a triangle with angles measuring 100, 40, and 40 degrees or a triangle with angles measuring 110, 35, and 35 degrees.
It is worth noting that an obtuse triangle is still a valid triangle, but it has different properties compared to an acute triangle or a right triangle. Additionally, when working with an obtuse triangle in geometry, we may use trigonometric functions like sine, cosine, and tangent to find the lengths of the sides or angles of the triangle.
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